Roof-flashing sealing and retaining device



April 19, 1927. 1,625,688

G. W. SCHAEFFER ROOF FLASHING SEALING AND RETAINING DEVICE Filed NOV.25. .1925

% WWXZFM Q W2 3i zs 198751296375.

Patented Apr. 19, 1927.

UNITED STATES 1,625,688 PATENT OFFICE.

GEORGE w. sonnnrrnn, or cnrcnoo, ILLINOIS.

ROOF-FLASHING SEALING AND RETAINING DEVICE.

Application filed November 25, 1925. Serial No. 71,314.

against the entrance of water. It consists in the elements and featuresof construction shown and described as indicated in the claim.

In the drawings:

Figure 1 is a detail section of a'brick wall and portion of the adjacentroof in which the present invention is employed.

Figure 2 is a similar detail section in which the wall is concrete, andis shown at the stage of construction at which the device for thepresent invention is incorporated, which-is when the boxing is preparedfor the concrete, and the concrete is poured thereinto.

Figure 3 is a detail sectional perspective view of a portion of a brickwall and adjacent roof showing the brick and parts of the device ofactual size, and the part which characterizes the present invention inposition in the brick wall ready for the flashing to be applied.

Figure 4 is a view similar to Figure 3 showing the flashing applied, andthe securing device, which constitutes the present invention, foldeddown into flashing-securing position.

Figure 5 is a detail perspective View showing the parts as in theposition of F gure 3 with the brick broken away to disclose the devicemore fully than in Figure 3.

Figure 6 is a detail elevation showing a portion of a gable roof withthe adjacent brick wall rising above the peak and equipped with thisinvention.

Figure 7 is a detail section showing the device applied to the mainflashing without superfiashing.

Figure 8 is a detail plan view of a fragment of the pocket device of theinvention showing indentations forming bosses for holding the pliesspaced apart.

' Figure 9 is a detail section, at 99 on Figure 8 on a magnified scale.

As is well understood, in the present method of applying and securingroof flashing for protecting the angle between the roof and the brick orconcrete wall or chimney rising above the same, the wall is completelyconstructed as to the laying of the brick .or pourin and setting of theconcrete, before the ashing is applied, and when the roofer comes toapply the flashing, in order to guard the upper edge of the portionwhich laps the vertical surface of the brick or concrete wall, it isnecessary in the case of the brick wall, to cut out the mortar betweenthe two layers of brick between which the lip of the metalcounter-flashing must be inserted for retaining it on the wall; andbesides the diflicult and laborious character of this work, the jointthus opened must be again completely re-occupied with mortar or cement;and besides the labor and expense of this process, it is difiicult torestore the joint '50 that it shall be as perfectly water-tight as theoriginal mortar joint; and it is necessary to employ flashing hooks orlead plugs to prevent the lip of the flashing from working out of thebrick joi it, which by binding the lip tightly tends to prevent thelongitudinal movement of the flashing which is necessary to accommodatethe expansion and contraction caused by change of temperature, by reasonof which in the common construction the flashing is liable to beruptured or torn loose. The present invention is designed to overcomethis difiiculty and defect, and for that purpose it consists essentiallyof a sheet metal pocket or socket member which in the case of a brickwall may be lodged and engaged in the mortar between the two layers ofbrick where the mortar would be cut out for entering the superfiashingin the present method. This metal pocket or socket is made by folding apiece of sheet metal, indicated at A, in the drawings, so that the twoplies or layers shall be spaced aparta distance substantially equal tothe thickness of the sheet metal of which the counterfiashing iscommonly made, sheet metal of the same thickness being desirablyemployed j for this pocket. The sheet metal, folded as indicated at a,is then bent as to both its plies, as seen at a to form anobliquely-extending two ply lip or flange. indicated in its entirety byA the width of this lip or fiange being slightly less than the customarythickness of the mortar layer between the two courses of brick, B, B,between which the device will ?be set in the mortar, indicated at B Thelower ply or fold, .A', is bent at, a right angle,-

as seen at a, to adapt said lower ply to embrace the corner of the brickof the lower course. The upper ply,

tion on the lower course of brick before themortar is appliedpreparatory to the next course, so that it is'completely einl-iedded,under the mortar, the obliquely upturned lip, A being th'ereby heldagainst horizontal displacement of the device. Desirably the widthbetween the right fold, a and the oblique angle fold, a, is aboutone-half the width of the brick, that is to say about two inches.

In case of a concrete wall, the folded sheet metal element in the formshown in Figure 3,tl-at is, first folded double at a, then bent at theobliqueangle, a and then having the lower ply bent at right angles a,with the portion, a of the upper ply protruding directly from the wall,is secured by mounting it upon the upper edge of a board, 0, of theboxing, and securing the same by tack, s, as shown at 0, driven throughthe projecting portion, (i of the upper fold or ply; and in thisposition it will be seen that as to the two ply portion backaof theright angle bend, a it becomes embedded in the concrete when poured intothe boxing, and is held in the 1ntegral=concrete wall with the samecertainty and 'sec urety it is held in the mortar layer between thecourses of the brick of a brick wall.

lVhen the wall has been equiped in its construction with this device,and the roofer comes to apply the flashing, the usual main flashingelement, D, which may consist of felt in the case of a felt roof, or maybe metal in the case of a metal roof, or of sheet metal applied,according to the usual varied methods, is applied in the usual manner,as seen' in Figure 3, and the counterflashing, E, in the usual form of asheet metal bent at right angles to form a horizontal lip or flange Ewhich in the customary construction is inserted between the brickcourses from which the mortar has been first dug out, is applied byinserting this flange, E

. between the piles of the folded pockets or (ill socket member, A,already built into the wall, and the horizontally protruding marginalportion a, of the upper ply is then folded down over the verticalportion of the inserted counter-flashing enclosing and securing thesame, as clearly seen in Figure 4. It will be seen that the method ofcompleting the construction for securing the flashing will be the samein the case of a concrete wall as in the case of a brick wall abovedescribed. I

From Figure 6 it will be understood that length to the sections of theflashing and counterflashing which are made in trape" zoidal form tomatch the slope of the roof at the lower end, and conforms to the lineof-the'brick courses at the upper end resulting in the steppedappearance of thesuccessive sections applied along the slope (it theroof, as seen in Figure (3. And from this figure it will be. understoodalso that this device is applicable equally to a double sloped or gabledroof, in which the form of the countertlashing is as seen at E", inFigure 6, while the form of the pocket or socket member for holding thecounter-flash ing member which strides the ridge of the roof, 'is notaffected by that feature, but is straight paralleled edged as for theother sect-ions along the slopes of the roof.

In order to prevent the fold of plies of the socket and pocket device,A, from being pressed close together in the process of laying the courseof bricks above it, and thereby making it impossible after the mortar isset to insert the flashing of the counterflashing, one ply,preferablythe upper-is indented, as seen at e in Figure 8, forming bosses seen ate in Figure 9, which are of sufficient height. to keep the plies spacedapart while the mortar is soft, notwithstanding superincumbent coursesof brick. These bosses are readily cut off if the metal is soft, orressed back if it is harder, by the lip of tie counter-flashing whenthat is applied by the roofer by driving it into the pocket; and thebosses insure tight grip on the flashing lip, notwithstanding the lattermay happen to'be thinner than the width of the interspace provided forit by the pocket devices, This construction, avoidin the necessity offlashing hooks or lead plugs, leaves the counter-flashing free forlongitudinal movement to accommodate the expansion and contraction dueto change of temperature.

In certain instances in which it is practicable to dispense with what Ihave called the counter-flashing by employing main flashing of the sheetmetal formed with an outwardly open right angle bend at the junction ofthe roof and the wall, and an oppositely open right angle bend formaking a lip to )roject between the brick courses of the wal ,or atcorresponding place in a concrete wallit will be understood that thedevice of this invention will be built into the wall precisely as abovedescribed, and the lip of the main flashing will be inserted in thepocket precisely as above described with respect to the lip of thecounter-flashing, and will be secured and protected by folding down theprojecting 1y of the pocket exactly as described in t e instances inwhich a counter-flashin is em loyed. Such a use of the device is s ownin igure 7 in which the lip of the main flashing is denoted by D.

I claim:

A device for the pur se indicated consisting of sheet metal olded toform two similar plies spaced apart foradmittmga metal sheet betweenthem, one ply being bent away from the other at right angles along aline parallel to the fold at a substantial distance therefrom, the otherply being left extendingbeyond said line for a substantial distance forsubsequent bending at a like angle after insertion of the metal sheet,and

one ply being formed with one or more projections extending for contactwith the other ply to maintain the spacing between them beforeinsertion. of said sheet.

In testimony whereof, I have hereunto 20 set my hand at Chicago,Illinois.

, GEORGE W. SCHAEFFER;

